Spiaggia di Vignola

Drop anchor off Vignola Beach, a 1.5-kilometer stretch of fine white sand sitting about 4 km east of Portobello di Gallura. The setting is classic northern Sardinia — backed by a Spanish watchtower and fringed by the kind of clear water that makes it hard to stay on board. Once you swim ashore, there's a bar and restaurant waiting, so no need to ration the snacks.